Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
A light burns out in your house, so you go to the store to buy a replacement. You can spend $22 to buy an equivalent LED bulb, spend $2 to buy a 60-watt incandescent light bulb, which only uses 12 W however is just as bright. On average, the bulb will be on for 4 hours per day, and the power company charges you $0.20 per kW-hr of energy you use.
(a) If you buy the more expensive LED bulb, how long (in days) will it be before you break even? In other words, how long will it take before the combined purchase cost + energy cost is the same for these two bulbs?
A wire carries a current of 6.0 A in a direction that makes an angle of 36.0° with the direction of a magnetic field of strength 0.300 T. Compute the magnetic force on a 7.00-m length of the wire.
As a bowling ball of radius 14.0 cm rolls down the alley to the right, a frictional force of magnitude 1.22 N, Find the frictional torque with respect to an axis through the center of the ball
A charged paint is spread in a very thin uniform layer over the surface of a plastic sphere of diameter 18.0cm , giving it a charge of -12.0?C. Find the electric field just inside the paint layer
a photon with a wavelength of 3.5 x 10^-13 m strikes a deuteron, splitting it into a proton and a neutron. Calculate the kinetic energy released in this interaction
The coefficient of static friction between m1 and the horizontal surface is 0.60 while the coefficient of kinetic friction is 0.30. what will be the acceleration of the system
The step-down transformer in a local neighborhood reduces the voltage from a 7,200 V line to 120 V. What current does the transformer draw from the line
you are a poor student with an old car that has bald ties. you are traveling at 60 mileshour and you slam on the brakes
An airfoil is being tested at an altitude of 34000 ft, standard atmosphere, and a speed of 600 knots. At a specific point "A.'' the pressure is measured to be at eighty-seven percent (87%) of the free tream pressure. Determine the local velocity a..
A uniform ladder of length L and weight 235 N rests against a vertical wall. What is the smallest angle the ladder can make with the floor without slipping
A cart with mass 380 g moving on a frictionless linear air track at an initial speed of 1.3 m/s undergoes an elastic collision with an initially stationary cart of unknown mass. After the collision, the first cart continues in its original direction ..
a 1000 kg car traveling south at 30ms collides with a 2500 kg truck traveling north at 15 ms.a what is the total
Water runs out of the horizontal drainpipe at the rate of 120 liters per minute. It falls 3.20 m to the ground. Assume the water doesn't splash up, what average force does it exert on the ground? (1 liter = 1 kg.)
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd